Loopt was founded by Sam Altman in 2005.

Who are Loopt's investors?

Loopt's investors include New Enterprise Associates (NEA), Y Combinator, Sequoia Capital.

Loopt was acquired by Green Dot.

Where is Loopt headquartered?

Loopt is headquartered in San Francisco, US.

Loopt

acquired by Green DotYC S05

San Francisco, US · Founded 2005 · 11 employees · 3 known investors

Find your way into Loopt

1,400 people in our graph share verified history with the Loopt team — schools, employers, funds. One of them is your warm intro.

Akshat Goenkaunlockedknows Sam Altman · together at Y Combinator (overlapped)

×2knows the team · via OpenAI

×7knows the team · via Y Combinator

knows the team · via John Burroughs School

knows the team · via Helion Energy

Loopt provides a mobile location-based service that helps users discover and connect with nearby people, places, and events in real-time using their phones.

Consumer SocialUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S05)

Loopt was founded in 2005 by Sam Altman.

Sam Altman 𝕏Co-Founder & CEO2005–2012Co-founder & CEO of OpenAI; former President of Y Combinator

Investors · 3

New Enterprise Associates (NEA)Menlo Park · $200K – $40M

Y CombinatorSan Francisco · $500K

Sequoia CapitalreportedMenlo Park · $4.4M – $214M

Founder mafia

5 people who came through Loopt went on to found or lead other companies.

Sam AltmanCo-Founder & CEOFounded Tools for Humanity +2 Tommy TsaiDirector of EngineeringFounded Shopular Alok DeshpandeCo-FounderFounded SmartPath Sam YamFirst Server Engineer and Mobile EngineerFounded Patreon Jared TameSoftware Engineer, ProductFounded GraffitiGeo

In the news

Startupsstartups.rip · Mar 2026

The dealmaker who promised us Utopia and sold the world a trillion-dollar bubble | by Marco van Hurne | Mediummarcohkvanhurne.medium.com · Dec 2025

19-year-old Sam Altman presenting his first startup Loopt in a neon polo after leaving Stanford goes viral| Watch the rare footage | - The Times of Indiatimesofindia.indiatimes.com · Aug 2025

Green Dot Acquires Loopt For $43.3 Million In Cashthenextweb.com · Mar 2012

Before SXSW Sunk Its Valuation, Loopt Location App Sells To Green Dot For $43.4 Million Cash | TechCrunchtechcrunch.com · Mar 2012

Frequently asked questions

What does Loopt do?: Loopt provides a mobile location-based service that helps users discover and connect with nearby people, places, and events in real-time using their phones.
Who founded Loopt?: Loopt was founded by Sam Altman in 2005.
Who are Loopt's investors?: Loopt's investors include New Enterprise Associates (NEA), Y Combinator, Sequoia Capital.
Who acquired Loopt?: Loopt was acquired by Green Dot.
Where is Loopt headquartered?: Loopt is headquartered in San Francisco, US.